Shaker-boom.



R. G. LAVVRY.

SHAKER BOOM.

APPLICATION FILED ]AN.14. 1916.

Patented Sept. 5, 1916.

3 SHEETS-SHEET 1.

R. G. LAWRY.

SHAKER Boom. APPLICATION FILED JAN. I4, 1916.

Pmemsept. 5,1916.

3 SHEETS-SHEET 2.

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W 95%?. WWMZ @WWW G. L'AWRY. SHAKER Boom. l APPLICATION FILED JAN-14|1916.

3 SHEETS-SHEET 3.

Patented Sept. 5, 1916. t

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RAYMOND Gr. LAWRY, 0F CHICAGO, ILLINOIS, ASSIGNOR TO ROBERTS ANDSCHAEFER. COMPANY, 0F CHICAGO, ILLINOS, A CORPORATON 0F ILLINOIS.

SHAKER-BOOM.

Specification of Letters Patent.

Patented Sept. 5, lml.

Application led January 14, 1916. Serial No. 72,035.

position to a discharge point without breakv ing or damaging thematerial.

Another object is to provide means for screening and separating thematerial if need be.

Another object is to provide a new andl improved feed for feedingmaterial to coal cars and the like.

@ther/objects of my invention will appear from time to time in thespecification.

My invention is illustrated more or less diagrammatically in theaccompanying drawings wherein Figure l is a side elevation; Fig. 2 is asection on the line 2 9. -of Fig. l; Fig. 3 is a section along the line3 3 of Fig. l; Fig. 4 is a detailed side elevation on an enlarged scale;Fig. 5 is a section along the line 5 5 of l4` ig. 4.

Like parts are indicated by like numbers throughout the several figures.

A A represents uprights and A1 A1 horizontal members forming a part ofthe material handling shed o'r structure. A2 A2 are railroad y tracksextending longitudinally within such structure. A3 is a railroad caradapted to stand` upon such tracks.

B is a feed chute or spout leading from a suitable source of coal orother material Supply not here shown. rllhis spout is provided with anapron or extension B1 diagonally hinged thereupon andsuspended at itsdischarge edge immediately above but just out of contact lwith the uppersurface of the i feed boom so vthat rotation of the pulley the cable C.rllhe weight is sufliciently heavy to always hold the apron up but thisweight is overcome by the weight of the boom, the arrangement being suchthat as the boom moves up or down, the apron moves with it so as toalways provide a smooth gentle How from the apron to the upper end ofthe boom. The lower end of the boom is supported by cables D passingover sheaves D1 on the boom and sheaves D2 on the structure. Thewindlass D3 is provided whereby the height or position of the end of theboom may be controlled quite independent of the reciprocation of theboom,

The `eccentric BT comprises a shifting block G having an eccentricaperture C1 therein provided with a semi-cylindrical slot G2. Thisshifting block rides upon an eccentric G3 keyed to the shaft G4. Theeccentric has a series of semi-cylindrical `slot's G5 therein. Inoperation the throw of the eccentric is adjusted by rotating theshifting block on the eccentric blockand locking it in position byinserting a bolt Cr into the bolt hole formed by the registry of theeccentric slotson the two blocks. At the other end of the eccentric linkB0 removed from the eccentric is a loop This loop is adapted to engagethe pin H1 and the pin is held in position by a semi-cylindricalboxmcmber H2 adapted to be tightened up by a wedge H2, which wedge isforced into and held in place by the cap screws H4.

rllhe apertures B are provided in the floor in the upper portion of theboom forming an integral pai-tof the boom. Their function is of courseto separate out such material as may be broken off into fines during thepassage of the material from theconveyer to the boom. The hopperreceives such material and the conveyer B2 disposes of it.

lt will be evident that while ll have shown in my drawings an operativedevice, still many changes might be made in size, shape 'llhe use andvoperation of my invention is U0 as follows: Coal or other friablematerial is fed from the storage reservoir b v any suitable means, suchfor instance as the horizontally disposed conveyer shown across the cartracks..l This conveyer discharges at its end or elsewhere, as the casemay be, upon the upper end of an inclined, pivotal reciprol.ating feedchute, which chute is in my preferred form` at right-angles to the pathof the material as i't approaches on the conveyer. This.reciprocatingspout is made in one section. and means must be therefore provided toconvey the material from the fixed conveye' and drop it or discharge itor gently deposit it upon the upper end of the reciprocating shakerchute or boom independent of the. inclination of that boom. 1n otherwords, it would be fatal to have any sudden drop of the material fromthe conveyer to the boom. The diagonally pivoted apron provides suchnecessary intermediate link. Its presence results in permitting a smoothHow of the material and a gentle deposition of it from the conveyer ontothe boom. rI`he supporting means comprising a weight and cable beinganchored on the boom causes the inclination of the apron to vary inproper proportion with respect to the variation and the inclination ofthe boom. The operator will start with the boom lowered so that it restssubstantially on the floor of the car. The coal comes gradually down theboom` being encouraged in its flow by the reciprocation or shaking ofthe boom` and is gradually flowed off or deposited on the car withoutbreakage and without appreciable drop. As the car fills up the operatormanipulates the windlass to raise the end of the boom. and thismanipulation of the boom is quite independent of the reciprocation ofthe boom. The only time the reciprocation of the boom need be changed iswhen different types of material are being handled. Some coal does notflow as easily as others. For such coal the reciproeation must beincreased. This is done by rotating the adjusting block with respect tothe eccentric. Both these blocks are eccentric. and by locking them inposition with respect one to the other, a fixed eccentric is provided. Arelative rotation of the two parts as shown will of course result inchanging the flow of the eccentric, but this can only be done when theeccentric is at rest. The screen is provided integral with the boom totake out dust and small particles which may have been produced by theconveying of the material along the conveyer and 'by its dischargefromthe conveyer to the boom` caused principally by the rubbing of theparticles together.

I claim:

1. The combination with a pivotally mounted loading boom and means forraising and lowering one end thereof, of means for feeding material tothe upper end of the boom and depositing it gently thereupon independentof the inclination thereof, said means comprising a conveyer fixed iuposition, and a discharge apron interposed bctween a portion of saidconveyer and the boom, and means for supporting such apron with itsdischarge edge adjacent the upper surface of the boom, said supportingmeans comprising a cable anchored at one end on the boom, means forpulling upwardly thereupon` and a cable anchored on said first mentionedcable and supporting the apron at the other end.

i2. The combination with a pivotally mounted loading boom and means forraising and lowering one end thereof of means for feeding materialtoward such boom along a line perpendicular to the axis thereof, andmeans for depositing such material gently thereupon independent of theinclination thereof.

3. The combination with a pivotally mounted loading boom and means forraising and lowering one end thereof, of means for feeding materialtoward such boom along a line perpendicular to the axis thereof, andmeans for depositing such material gently thereupon independent of theinclination thereof, said means comprising a. conveyer fixed inposition, and a dischargel apron interposed between a portion of saidconveyer and the boom. and means for supporting such apron with itsdischarge edge adjacent the upper surface of the boom.

4. The combination with a pivotally mounted loading boom and means forraising and lowering one end thereof, of means for feeding materialtoward such boom along a line perpendicular to the axis thereof, meansfor depositing such material gently thereupon independent of theinelination thereof, said means comprising a conveyer fixed in position,and a discharge apron interposed between a portion of said conveyer andthe boom, and means for supporting such apron with its discharge edgeadjacent the upper surface of the boom, said supporting means comprisinga cable anchored at one end on the boom. means for pulling upwardlythereupon, and a cable anchored on Said first mentioned cable andsupporting the apron at the other end.

5. The combination with a pivotally mounted loading boom and means forraising and lowering one end thereof of a conveyer arranged to feedmaterial along the line substantially perpendicular to the axis of theboom, said conveyer being in fixed position, and means carried by saidconveyer for depositing material from the conveyer gently upon thefeeding boom independent of its inclination.

6. The combination with a pivotally mounted loading boom, and means forraising and lowering one end thereof of e conveyer and means for feedingmaterial directly from the conveyer to the boom and depositing it gentlyupon the boom independent of the change in the inclination of the boom.

In testimony whereof, l[ aflixmy signature in the presence of twowitnesses this 4th day of IJanuary 1916.

RAYMND G. LAWRY.

Witnesses:

MINNIE M. LINDENAU, CHRIS'HNA DEANS..

